Regs are a good start
Not sure if Frank is still in business but Bronte Outdoors on the Lake shore in port credit would be a great place to start.
He is a great guy tell him Peter sent you
They were last best before last date. Got a 2 pack for $11 at Zhers. I just did a dry rub,brown sugar / kosher salt. Let get happy for 3 days,flipping over each day. Rinse,let air dry for 4hours after patting dry,then in the smoker for the 3,2,1. Smoked with apple.